Finding the Fourth Proportional to 2,405,934.28, 3,319,076.35 and 2,130,572.75
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Solution
The fourth proportional to 2,405,934.28, 3,319,076.35 and 2,130,572.75 is: 2,939,204.82
Step by Step Solution
- Step 1: Write the proportion equation
2,405,934.28 : 3,319,076.35 = 2,130,572.75 : x - Step 2: Convert to fraction form
2,405,934.28/3,319,076.35 = 2,130,572.75/x - Step 3: Cross multiply
2,405,934.28x = 3,319,076.35 × 2,130,572.75 - Step 4: Simplify right side
2,405,934.28x = 7,071,533,631,217.10 - Step 5: Solve for x
x = 7,071,533,631,217.10/2,405,934.28 - Step 6: Final answer
x = 2,939,204.82
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.